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Re: [PATCH 32/58] Hide internal signal functions [BZ #18822]
- From: "H.J. Lu" <hjl dot tools at gmail dot com>
- To: libc-alpha at sourceware dot org
- Date: Sun, 1 Oct 2017 15:37:16 -0700
- Subject: Re: [PATCH 32/58] Hide internal signal functions [BZ #18822]
- Authentication-results: sourceware.org; auth=none
- References: <20170901180029.9527-1-hjl.tools@gmail.com> <20170901180029.9527-33-hjl.tools@gmail.com>
On 9/1/17, H.J. Lu <hjl.tools@gmail.com> wrote:
> Hide internal signal functions to allow direct access within libc.so and
> libc.a without using GOT nor PLT.
>
> __GI___kill and __GI___sigaltstack are defined when syscalls.list is
> used to generate them. Otherwise libc_hidden_def is needed explicitly.
>
> [BZ #18822]
> * include/signal.h (__kill): Add libc_hidden_proto.
> (__sigblock): Likewise.
> (__sigprocmask): Likewise.
> (__sigaltstack): Likewise.
> * signal/kill.c (__kill): Add libc_hidden_def.
> * signal/sigblock.c (__sigblock): Likewise.
> * signal/sigprocmask.c (__sigprocmask): Likewise.
> * sysdeps/mach/hurd/kill.c (__kill): Likewise.
> * sysdeps/mach/hurd/sigaltstack.c (__sigaltstack): Likewise.
> * sysdeps/mach/hurd/sigprocmask.c (__sigprocmask): Likewise.
> * sysdeps/posix/sigblock.c (__sigblock): Likewise.
> * sysdeps/unix/sysv/linux/alpha/sigprocmask.c (__sigprocmask):
> Likewise.
> * sysdeps/unix/sysv/linux/ia64/sigprocmask.c (__sigprocmask):
> Likewise.
> * sysdeps/unix/sysv/linux/s390/s390-64/sigprocmask.c
> (__sigprocmask): Likewise.
> * sysdeps/unix/sysv/linux/sigprocmask.c (__sigprocmask):
> Likewise.
> * /sysdeps/unix/sysv/linux/sparc/sparc64/sigprocmask.c
> (__sigprocmask): Likewise.
> * sysdeps/unix/sysv/linux/x86_64/sigprocmask.c (__sigprocmask):
> Likewise.
Tested with build-many-glibcs.py. I am checking it in.
--
H.J.